Forming



(No Model.) 9 Sheets-Sheet 1.

G. T. vP-ILLINGS. MAGHINE FOR FORMING AND SOLDERING LOGK SEAMS 0P SHEET METAL CANS.

No. 536,589.. Patented Mar. 26, 1895.

@Vbtweooeo mmvm (No Model.) 9 Sheets-Sheet G.,T. PILLINGS, MACHINE FOR FORMING AND S OLDERING LOUK SEAMS 0F SHEET METAL mus. No. 536,589. Patented Mar. 26, 1895.

WWW f 9 Sheets-Sheet 3 (No Model.--)

G-. T PI-LLINGS. MACHINE- FOR FORMING AND SOLDERING LOCK SEAMS 0F SHEET METAL CANS. v No. 536,589. Patented Mar. 26, 1895.-

Gwen veg EFI 9 Sheets-Sheet 4.

METAL GANS.

Patented Mar. 26, 1895.

, e. T. PILLINGS. MACHINE FOR FORMING AND SOLDERING LOCK SEAMS 0P SHEETv W A I A (No Model.)

e V wA A V w I r v wi/lwvwoeo Jm/QAMM DMM W- (No Model.) 7 9 Sheets-Sheet ,5.

, G. T. PILLINGS. MACHINE FOR FORMING AND SOLDERING LOCK SEAMS 0F SHEET METAL CANS. No. 536,589. I Patented Mar. 26, 1895;

' lull" (No Model.) 9 SheetsSheet 6.

G. T. PILLINGS.

MACHINE FOR FORMING AND SOLDERING LOCK SBAMS 0F SH'EE-T METAL GANSL No.' -536,589. Patented Mar. 26, 1895.

' ,9 SheetsSh e et 9.

(No ModelL) Y I I G. T. PILLINGS. t

MACHINE FOR FORMING AND SOLDERING LOOK SEAMS 0F SHEET METAL CANS. No. 536,589. Patented Mar. 26,1895.

H: mums PETERS co. PHOTO-LUNG wgsnmur B c wi/kmeaaea UN-HEB STATES PATENT OFFLCEQ ieitoncn' T. I IL I cs, oF 'BALTIMORE,. MARYLAND, .gssIcNoR TO R. TYNES sigi'rn, SAME PLACE."

MACHlN E i-QB FORMING Ailp S'OLDERING LOCK-ISEAMS 0F SHEET-METFAL CANS.

srncrrrcerren fpnnin ars r Letters Patent No. 536,589, dated yrarch 26, 1895';

.aApjilication fil g i nuar 11,1895. saithn5.-bfsie,63h. tomodei.) a

. ta- To all whom it may concern:

Be it known that I, GEORGE T. PILLINGs, a

citizenof the United States, residing at the:

city of Baltimore, intthe State of Maryland, have invented certain new and useful Improvements in Machines for Forming and Soldering Lock-Seams of SheetFMetal Cans; and I do hereby declare the following to be a full, clear, and exact description of the inven- :0 tion, such as will enable others skilled in the art to which it appertains to make and use the same.

My present invention relates to machines for making sheet metal cans and has especial reference to machines for making cans provided with a lock seam, and it is my purpose to construct a machine that will consecutively bend the edges of the tin and form flanges thereon, then look the flanges, then press the flanges down upon each other and form a seam, then flux the seam and finally solder the seam, and which machine shall be capable of being operated by unskilled labor.

With this object'in view theinvention will z 5 be fully disclosed in -the following specific-a tion and claims.

In the accompanyingdrawings, which form part of this specification, Figurel represents a side elevation of my improved machine, 0 some of the supports for the levers being;

omitted to avoid crowding the drawings; Fig. 2, a transverse section on the line 2, 2, showing the mechanism for bending the edges of the tin; Fig.- 2, an enlarged section of the bars 5 for bending the edges of the tin and forming the flanges; Fig. 3, a like view on-the line 3,

3, showing the mechanismfor engaging the flanges; Fig. 4, a like view on the line 4, 4,'

showing the mechanism for pressing-the 4o flanges upon each other and forming a seam; Fig.5, a likeview on the line 5, 5, showing the mechanism for fluxing the seam; Fig. 6, a like view on the line 6, 6, showing the mechanism for soldering the-seam; Fig.7., a like 5 view on the line 7., '1, showing part ;of;the mechanism for raising: the mandrel to remove the soldered 'can-bodies from .the imandrels;

Fig. 8, a top plan view of thecan-jmoving mechanism resting on the frame of ;the nutchine; Fig. 9, a ;s ide e1ev;atiQn-' oft the same;

Fig.-10, a transverse section on heal-inc 2, 2,

showinga ni odiflcation of, theimechanism for formingthegianges on the edges of the tin; Fig. 11, an ifiwertedplan yiew on the line 11,

11; showing the cam shaft'and the connections 5 5 for moving the cams while they are being operated upon; Fig. 12, a'transverse section on the line 12, 12, on Fig. 2,showing the face of one of the dies for forming the flanges. Figs. 13,14, 15 and '16, are vertical longitudinal sections of, the machine beyond the point The ti n having'been cntinto properlength and width according to the size of can to be made, the pieces of tin are bent intoan approximately cylindrical form preparatory to being placed in the machine and are opened and passed over the mandrel at the part a and 'are pushed forward by hand until the can- .movingmechanism engages the can body D So and pushes it into the portion of the machine G where the edges of the can-body are bent in opposite directions'and flanges formed thereon.- This mechanism-is best shown in Figs. 2, 2, 17, 18, 19, and 20 and comprises a yoke 83 consisting of bars I), b, connected by rods 0, c, a pair of vertically reciprocating bars d d and formers 6 6 The bar is attached to the under side of the upper barb of the yoke andthe ther bar d is normally held in the slotZ go by frictional contact between its sides and the adjacentbar: and the wall of the slot rests upon a rodfwhile it is being raised thereby and said band is pushed down or returned toits normal position by the upper bar b of 5 the yoke in its down stroke. The bars (1 d are each provided with a recess 9 in their outer sides, the upper end of one of which recesses and the lower end of, the other termiby the formers e e; and at the opposite end of the recess is a concave wall 11 which bends the flange down upon the curved face is of the former and forms a hook like flange such as is commonly used for forming lock seams in sheetmetal ware.

The bars (2 reciprocate in afslot Z in the mandrel B and are operated by a cam m on the shaft n which alternately raises and lowers the yoke, carrying one of the bars dand the rodf which raises the other bar d. 'The flanges on the can-body are bent at an angle at one stroke of the bars d d moving in opposite directions and are then bent back toward the can-body by the return stroke ofthe" bars, and the can-body is supported by'the mandrel B and the wall 0 of the portion of "the machine O'whioh conformsito thedesired diameter of thecan-bod-y.

The next stepin the-operation is,-engaging thefiangespp to form'a lock seam and the mechanismtherefor' is best's'ho-wmi-n Fig. 3 and the portion of the 'maehinewhich performs thiswork is designated by theletter D. The can-body is supportedbythe frame and by mandrel B which is'cut away on its upper sideat-q to admit of pressing on'e edge of the can-body with its flangeunder and beyond the opposite edge to hook to engage the Thisoperation is performed by an arm or lever *rhaving a pad son itsfrseehd, the inner face of which pad conforms with the can-body. The arm riszpivotedto-a lug t on a sliding plate u and is *conhectedby 'a. link o toa bell crank lever wwhose lowe'r end is engagedby a cam monthe shafit nto recip lug at the outer end of theplat'e and i's'o'pe'rated by a cam a, on 'the shaft n. The levers r and y are respectively supported 'andprvotally fulcrumedon brackets b"c"0n the um. der'sideof the frame A. .Assoon as thepad' s is removed from the can-body the resiliency of the metalcauses it to expand and' engage theflaugesppin locked position.

The next step in the operation is pressing the locked flanges pp upon each other and forming a seam and is perfo'hm'edinthe portion ofthemachine designated by th'e lett'e'r E aud themechanism therefor is'bests'ho'wnj in Fig. 4. The can-body issuppor-tedon' the mandrel B and in the wall e andis operated. upon by a hammerf and anflanvil'gfthe lat-j tel-being inserted in the mandrel. The h'afn-l mer f is connectedtothe uppeNba'r h' are yoke composedof saidbarg'abar fiand two; connecting rods k'k wliich rod's are provided 1 with collars-Z between which colla'rs and thei center side-rails m of the frame are inter-f1 posed springs-n"to raise the 'hammer f out i: ofengageinent with the can-body as soon as the flanges p p of the seam have'been'press'ed 1 together. Theyoke carrying the hammer f ismoved downward by a cam 0' on the shaft n and the fiangesp p pressed upon the anvil .g' and the lock-seam formed. The side rods of this yoke and that of the part 0 which forms the fiangespp pass through the upper and "ce'nterside rails of theframe A and are guided thereby in their reciprocations. After the seam has been pressed it must be fiuxed preparatory to soldering, and this step of the operation is performed in the portion of the machine designated by the letter F, the mechanism-of which is best shown in Fig. 5. The canjbody is still supported by the mandrel B and bythe wall 10 and the flux is applied to the seam bya brush q pivotally supported on an arm T which is connected near its longitudinal eenter with the upper end of a lever s which is 'fnlcrumethon abracket t and at its lower end en ages aca'm u'on the shaft 11.,

and at its outer end the arm 1? isconnected to -lin k o"whic'h connects with a 'lever' 'v" fulcr'nr'ned one bracketw"a'nd-at its lower end'enga'gesra cam .70 onthe'sh'aftn. The flux is contained in a vessel y 'provid'edwith a *revolhble flux *calrrier z which "may be rev'olv edbyany suitablemeans. Thebrushq' operates in a trough a the length of the'canhody'aud is supportedon an'armb pivotally attached to a=brack et c on theupper surface of the-side rail' of the trameand-thetrough is pressed down upon'the can-body by aspring d Theseveral positions of the brush qand itsoperating parts are shownin full anddotted lines.

Thenext step'req'uired to'c'omp'lete the canbodsyis'soldering the-seam, which is done in "the portion *dfth'emachine designated by the letter G andisbest'show'n in Fig.'6. Thecanbody is supported by the' mandrel B and the curved wall e of the-portion G and the solder is applied to the seam by a soldering-iron f 'suppo'rted'by'an army which is'pivotally con- *nected nea'r its l'on gitudinal center to a lever h which lever is'fulcrumed toa bracket 11 and *at the rear end-of the arm g is attached a link lc 'whieh-connects itwith a lever Z pivotally connected and fulcrulnedto-a bracketm and said lev'ers at their lower ends engage cams 0 12 respectively which are supported on shaft 11. The solderis contained'in a bath p which is-provided'with a revoluble solder-car- 'rierq "which likethe flux-carrier may be revolved by any suitable means. The soldering-iron is heated by a 'suitable gas burner r and 'tlie'solder-bath is heated by a burner s". The solderingiron'is raised and reciprocated byth'e levers h and Z as shown in full andin dotted lines and a trough t 'is provided in which the soldering-iron is applied to theseam of the can-body. The trough t is also the l'en'gth'of the can-body and is supported on an arm u pivotally connected'toabracket v and is held in engagement'with the can-body 'by aspringw The soldered can-body m'ust nowbe removed from the mandrel and to accomplish thisthe mandrel israised to allow the can-body to be pushed otfthe mandrel. The. mandrel is raised by a series of bfarsoperated intermittently by cams on the shaft 01.

In Fig. 7 is shown on an enlarged scaie one of the bars a which is provided at its upper end with a seat b? to conform to the periph-- ery of the mandrel and at its lower end the bar engages a came of the shaft n, .The bar is held in proper alignment by bars 01 which cross the frame Atransversely. Thereare four of these bars the ope'ration'of which will be .more fully set forth in connection with Figs. 13, 14, 15, and 16. I have designated the bars a in said figures by letters H, I, K, andL in 1 the order in which they-are elevated by their respective cams 0 After the solder has been applied the bar H rises and. raises the mandrel sufficient to enable the can-body to be moved into the position shown .in 'Fig. 13,

when said bar'fallsand the v bar I rises and the can-body is moved into the" position shown in Fig. 14:, when the bar I falls a'nd'the bar K rises and. the can-body is moved into the position shown in Fig. 15, whenthe .bar K falls and the bar L rises and th'egcan body is moved into the position'shown in Fig. '16. "The p eration described is intermittent and is-igrer peated with each successive can-bodymadej and the can-body on the outer end of the drel is pushed off by the nex 9 16 coming trpm the soldering section of the Qma'chine. The

'Qmandrel being supported by the ends ogjthe frame of the machine only and secured to the front end of the frame, the mandrel issprung sufficiently by the bars to enable the can bed y to be discharged from the mandrel betweenit and its bearing in theouter end of thefname of the machine.

The mechani's'nffor moving the can-bodies is shown in Figs.1, 8, 9, andll and comprises primarily a pair of bars M M, which rest in grooves 02 in the frame Afiiid 'in"g'r'0oves' e in the sides of themandjiel B as showdin Figs. 2, 3, 4, 5, 6, '7, and 10. .Q Qn the inner and adjacent sides of said barsj'a're levers f .piv-' otally connected 'to lugs gtand pressed out- 'ward toward the mandrel atone end by springs s to engage a can-body on each side of the mandrel and push or move the can-body from one stage of "operation thereon to another until it is pushed ed the mandrelat its outer end; The bars M, M, are reciprocated interiniittently by a rock shaft h suppoi ted on the center side bar m of the frame of the'ma'chine and is operated by the gear wheels, i 10 the former being secured to shaft n as shown in Fig. ll'and the latter to a shaft Z to the outer end of which is connected'acrank m which is attached to pitmangn which at its opposite end is connected to'the cranks 0 oh the rockshaft h and the rock-shaft is connected to wrist pins 10 on the sides'pf the bars M, M,

bycrank lever q and rods r shown in Fig. 1.

The bars M, M, are reiprocated the length of outward by the springs s? andengage a canb'ody and push it forward the length of the stroke of the rock-shaft which stroke is equal to the distance the can-body is requiredto E heretofore described. In the back stroke of the bars the levers f do not engage the ends of the can-bodies. I

In Fig. 10 is shown a modification of the mechanism for bending. the edges of the canbody and forming the flanges p, p thereon. In this construction only one bar i is shown which is pivotally connected at i to a block which reciprocates in a slot t in the mandrel B, and it is providedwith means a on each sidefor forming the flanges inconnection with the fornierso one edge being turned at each stroke or reciprocation of the bar. The flange p having been turned at a right angle by, thebeadw the flange is bent back toward th ebody by the sides of. thegroove a which is effected lop-the bar being drawn toward the flange by means of the yoke 2 on bar 15 by rods 0. and b on each sidelthereof s i s 54 isr idlya-tta e t th y smith ba es nre a dby the y w n.Fig. ,2 by its connection with the main (shaft 17. .he lower portion of theoperating yoke has been .opnittedfin' Fig. 10 to avoid confusion, but it niay'here be stated that it is the'same as the yoke shown in Fig. 2.

6f thoseoperating the bars a cause the man erated'upon. v

The operation of the machine as a whole briefly stated i s as follows: The bent can- 'hody D' is placed upon the mandrel B at a and moved by hand into theportion of the machine designated by C where the reciprocating bars d d bend the edges of the canbody and form theflanges p p thereon. The levers f on the bars M. M. then engage the can-body and move it into the portion of the machine designated by D, where the flanges pp are engaged. The can-body is then moved by the bars and their leversf into the portion of the machine designated by E where the flanges 10,-p are pressed upon each other and the seam formed, after which the canbodyis moved into the portion of the machine designated by F where flux is applied to the designated by G, where theseam'is soldered. The mandrel B is then raised intermittently at its outer end by the bars H. LK and L and the can-body pushed off the mandrel by the .succeedi'ngcan-body which is being pushed along by the bars M. M. and their leversf While the foregoingoperation is being performed upon one can-bodyother can-bodies are following it upon the mandrel B to undergo the same operation consecutively. I

Having thus fully described my invention, what I claim is I move from onepart to another of the machine to be operated upon in the consecutive order the shaft-gt,.whiclgyoheds connected EtO the seam and then into the portion of the machine The cams on the shaft nare so set that none 7 drel to rise when the can-body is being opbars alternately.

flanges are formedon the'edg'esof the metal,

in combination with means for moving the one with theother.

ing 'said plate and lever to engage the lock flanges.

1. In a machine for making sheet metalcans, a fixed support for the can-body, a mandrel having a vertical slot therein, in combination with reciprocating bars seated in said slot and provided withmeans on their sidesfor forming witheooperatin g formers look flanges on the edges of the metal.

2. In a machine for making sheet metal cans, a mandrel having a vertical slot'therein, in combination with vertically reciprocating bars seated therein and provided withmeans on their outer sides for bendingwithc'ooperating formers theedges of the metal, a'yoke supportingone of said bars,-a rodsupportin'g the otherbar and means for operating said bars alternately. I g

3. In a machine for making sheet metal cans, a mandrelha'vinga vertical slot therein, and formers-on both'sides df'saidslot, in combinationwith'barsseatedin and adapted toreciprocate in theslot andbetween the formers, wherebylock flangesareformedon the edges of the metal, and means for 'operating said 4. In a machine for making sheet metal cans,a mandrehhaving'a'vertical slot t'herein,

formers on both sides ofsa'id slot, and bars seated in and adapted to reciprocate in the slot and between 'theformers, whereby lock flangesareform'ed on the edges ofjthe metaljin combination with meansfor movingthe canbodylongitudinally andadeviceforengaging said flanges one *with theo'ther.

5. In a machine for making sheet metali cans, a mandrelhavingavertical slottherein, formers on both'sides of said slot, and bars seated in and adapted to reciprocate in the: slot 'andbetwe'en the=formers, whereby lock flanges are formed on theedgesofthe'metal,i

in combination with means for moving'thej can-body longitudinally'and a lever for pushing one edge of theca'n-body under the oppoj site edge toengage the fianges'one with the} other. 6. In a machine for making sheet metal cans a mandrel having a vertical slot therein, formers on both sides of said slot and bars seated in'andadapted to reciprocate in the slot and between the formers, "whereby lock can-body longitudinally and means for pushingone edge of thecan body under andlbeyond theopposite edgeto'engagethe flanges 7. In a machine'for making sheet metal cans, a mandrel forsnpporting the can-"body and cutaway on its upper-side, and an externalsupport for thecan-body, in combination with a movable plate supporting alever which engagesthe can-body and means for'operat- 8. In a machine for maliingsh'eet metal;

cans,'a mandrel for supporting the can bodyg and cut away on its upper side, and an exterported on said plate, and cams, and-intermediate levers for moving said plate.

9. In a machine "for making sheet metal cans, amaudrelhatiinga verticalslottherein,

formers on both sides of saidslot andbars seated in and adaptedto reciprocate in-the slot and between the formers, wherebylock flanges are formed'on the'edgesof themetal, in combination with means formov'ingthe can-body longitudinally, means for engaging "the lock flanges and a 'deviceforpressingthe flangesone upon the'ot'her an'dforming alockseam.

'10. "In a madhinefor making sheet metal cans, a *mandrelhavinga vertical slot therein, formers on both sides of said *slotand bars seatedin and adapted to recilplo'catein the slot andbetween theformergwhereby flanges are formed'onthe outer edges'of the metal, 'in combination with "means for "moving the 'can bod y longitudinally, means ifor engaging theflange 'a'harnmer, andan'anvil'supported by the mandrel.

11. In a machine for making sheet "metal cans,amandr1'havingavertical slot'therein, formers on "both sides of said slot'and bars seated "in and adapted "to reiproeateinthe slot andbetweenthe'formers, wherby ffl'anges are formed on 'the edges ofxt'heme'talfincom- "bination with nie'ansfor'moving thecan body longitudinally mea'nsfor engagingth'dflanges, a hammenan'da "yoke to which "said hammer is attachedyananvil supported by the mandrel and meansfor operatingsaid yoke.

12. In a machine for making sheet metal cans,"amandrehhaving a vertical slot therein, "formers on both sides of said slotand bars :adapted torecipr'ocatein the slotandb'etwe'en the "for'mersrwhereby flanges are formed on 'the edges'of 'themetal, in combin'ation'with means for moving the can-body longitudinally, means for engag'ingtheflanges, means for pressing said flanges one upon theother anda device for fluxingthe'seam of'the canbody.

13. In amaohine for making sheet metal cans,a mandrel'having'afvertical"slottherein, formers on both sides of said slot and bars adapted to reciprocate inthe slot and between the formers whereby flanges are formed on theedges of the metal, in combination with means for moving the ean-bodydongitudinally, means for engagingthe flanges, means for pressing salidflanges one upon t'heother and an automatic "fluxing device.

and a fluxing device comprising a flux containing vessel, means for applying the flux to the seam of the can-body and suitable connections for operating the fluxer.

15. In a machine for making sheet metal cans, a mandrel, having a vertical slot therein, formers on both sides of said slot and bars adapted to reciprocate in the slot and between the formers whereby flanges, are formed on the edges of the metal, in combination with mechanism for moving the can-body longitudinally, means for engaging the flanges, means forpressing said flanges one upon the other, and a fluxing device comprising a brush, an arm supporting said brush, a lever on which said arm is fulcrumed, a lever for reciprocating said arm and suitable operating mechanism for said bars.

16. In a machine for making sheet metal cans, a mandrel having a vertical slot therein, formers on both sides of said slot and bars adapted to reciprocate in the slot and between the formers whereby flanges are formed on the edges of the metal,in combination with mechanism for moving the can-body longitudinally, means for engaging the flanges, means for pressing the flanges one upon the other, means for flnxing the seam and a device for soldering the seam.

17. In a machine for making sheet metal cans, a mandrel for supporting the can-body, in combination with an automatically operated soldering device comprising an iron, an arm to which the iron is attached, a lever on which said arm is fulcrumed, a lever connected to said arm and earns for operating said levers.

18 In a machine for making sheet metal cans, a mandrel for supporting the can-body,

in combination with a solder bath a soldering iron, an arm supporting said iron and fulcrumed on a movable lever, a lever for reciprocating said. iron and cams for operating both of said levers.

19. In a machine for making sheet metal cans, a mandrel having a verticalslot therein, formers on both sides of said slot,'bars adapted to reciprocate in the slot and between the formers whereby flanges are formed on the edges of the metal, in combination with means for engaging and pressing the flanges and forming the seam on the can-body, fluxing and soldering the seam, and mechanism for moving the can body intermittently.

20. In a machine for making sheet metal cans, a mandrel, means for forming and soldering a lock seam on the can-body, in combination with mechanism for moving the canbody longitudinally and means for raising one end of the mandrel to remove the canbodies.

21. In a machine for making sheet metal cans, a mandrel, means for forming and soldering a lock seam on the can-body, in combination with mechanism for moving the canbody longitudinally and a plurality of intermittently operated devices for raising one end of the mandrel to remove the can-bodies.

In testimony whereof Iaffix my signature in presence of two witnesses.

. GEORGE T.'PILLINGS.

Witnesses;

D. O. BEINOHL, v D. WEINER REINoHL. 

